Couple of things, there are at least two different procedures being described here. Meniscal repairs and menisectomies " meniscus tear removed". They are completely different. As someone siad about 2/3s of the meniscus is largely avascular and therefore has limited healing properties. If a meniscal repair is an option the tear has to be in the more vascular outer 1/3 and then greater post surgical limitations have to be placed on the patient ie non-weightbearing for 4-6 weeks or longer and ROM limitations. Recovery from a repair is a longer process but you have a better chance of saving articular cartilage (covers bones at joints) in the long run because the force absorbing and spreading function of an intact meniscus will hopefully be more fully preserved. A partial menisectomy is removal of the tear. Typically no weightbearing restrictions after this procedure and can rehab very quickly, even a matter of weeks if the rest of the knee is in good shape and there is not much inflammation, swelling, or muscle atrophy. However in the long run the partial menisectomy can lead to early onset of osteoarthritis ( the wear and tear kind) which can lead to knee replacement. If the knee is locking, stays inflamed and swollen, and just doesn't get better you may have to consider surgery. However there is more and more data coming out that we are scoping too many knees and performing too many partial menisectomies when long term results are similar between people with tears that have surgery and those that don't.
As disclosure I am a PT so you can take this with a grain of salt but I would first find a reputable orthopedic physical therapist and try a few weeks of PT before I did much else. I have a R medial meniscus tear myself that I manage through exercise.
These are generalities but evidenced based.
HD